Topband: Multiband antenna Inv L or top loaded vertical

John Randall m0els at yahoo.co.uk
Tue Oct 2 15:14:40 EDT 2018


The new qth is surround by high trees 40ft + and I want to put up a multi band L or a top loaded vertical.Ofcourse it must cover topband up to 10m. I envisage having to base load the antenna with switchable inductors and vacuum caps. I also ponder if going up straight through the branches into the clear above the trees is a reasonable idea, compared to putting the alu tubing inside the yellow gas tubing pvc and then the tubing sticking out the top for the top loading or Inv L wire. Can anyone run a ant simulation on both setups and also help on the matching reqd at the base.
Postage size garden are a hams worst nightmare.     Anyone in the US with a huge back yard care to swop homes LOL! Pics available on demand ......

73John -M0ELS




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